<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
		div{
			width: 200px;height: 200px;
			border: 1px solid red;
			overflow: scroll;/*超出部分出现滚动条*/
			overflow: hidden;/*超出部分不显示*/
			border-radius: 15px;/*设置圆角*/
		}
		a{
			text-decoration: none;/*去除下划线*/
		}
		input{
			border: 1px solid yellow;/*修改默认边框,none为取消边框*/
			outline: none;/*去除默认选中边框*/
		}
		</style>
	</head>
	<body>
		<a href="#">4399</a>
		<div>
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		</div>
		<input type="text" />
	</body>
</html>
